1. chemistry

    at some temperature, Keq=33 for the reaction H2 + I2 -> 2HI. If initially, [H2]= .0600 M and [I2]= .0300 M, what are all three equilibrium concentrations?

    asked by seth on March 7, 2016
  2. chemistry

    write the balanced chemical equation for the reaction that occurs when BaCl2.2H2O is heated.

    asked by jess on September 11, 2011
  3. Science

    How many atoms are in LiBr2 show in the reaction side? LiCl (22g) + Br2 (30g)

    asked by M on January 15, 2015
  4. science

    co2 +H2o=c6H12o6+6H2o+6O2 in this reaction what is the reoxidation number of glucose

    asked by Shovro on February 5, 2016
  5. science

    I have to draw Atomic Model Drawings of the Reaction to H2CO3 and then show a balance check. How do I do that?

    asked by Anonymous on October 23, 2010
  6. Chemistry

    What are the products for the reaction of Sodium hydrogen phosphate with nickel II nitrate Ni2HPO4 + Ni(NO3)2 -->

    asked by Lori on September 20, 2011
  7. Chemistry

    Write a chemical reaction showing an amphiprotic anion reacting as a base in water. Thank-you

    asked by Saphire on January 20, 2012
  8. Chem 104

    The reaction of 2.30g N2 with excess H2 produces 2.00g NH3. The percent yield of this reaaction is?

    asked by Zoria on July 21, 2011
  9. Chemistry

    find the reaction quotient: partial pressures are: p of N2=.903, P of H2=.888, P of NH3=.025

    asked by Anne on October 31, 2010
  10. chemistry

    write a balanced chemical equation for the following reaction including states not complete; no question.

    asked by walter on July 30, 2007
  11. chemistry

    Consider the following equation: CO + 2 H2 → CH3OH △H rxn = -128 kJ Calculate the amount of heat (in kJ) associated with complete reaction of 8.08 g H2

    asked by katia on December 6, 2015
  12. chemistry

    how many electrons are transfered in one atom of Mn in the reaction?MnO2+4HCl=MnCl2+2H2O+Cl2

    asked by Natty on December 7, 2015
  13. science

    you plan to measure the thermal energy released durning a chemical reaction what tool would you use

    asked by kayalh on May 18, 2016
  14. Chemistry

    The reaction of methyl-benzene with HNO3 in the presence of catalyst will provide what main compound?

    asked by David on May 9, 2016
  15. Chemistry

    After 79 mins 20.0% of a compound has decomposed. What is the half life of this reaction assuming first-order kinetics?

    asked by Josh on July 16, 2011
  16. Burnett

    Write balanced molecular and net ionic equations for the reaction of KHP with NaOH.

    asked by Mariah on October 9, 2011
  17. chemistry

    Write the anodic reaction for the electrolysis of zinc chloride solution using platinum electrode

    asked by osmon armin on September 28, 2016
  18. Chemistry

    Complete and balance the following equation. If no reaction occurs, write noreaction . NaOH(aq)+FeBr3(aq)→

    asked by Sue on October 8, 2016
  19. grade 12 chem

    use the activity series to predict if a reaction will occur, complete and and balance your equation. Zn(s)+ Cu(NO3)2

    asked by sailor on November 10, 2010
  20. chemistry

    assuming the following reaction proceeds in the forward direction, what is oxidized and what is reduced? Cu2+ (aq) + Ca(s) --> Cu (s) + Ca2+ (aq)

    asked by Tara on November 22, 2010
  21. Chemistry

    Calculate the standard enthalpy change for the following reaction at 25 °C.? 2CH3 OH(g) + 3O2(g) -------- 2CO2(g) + 4H2O (g)

    asked by Fahra on July 29, 2014
  22. medical language

    what are the interrelations of blood clotting, immune response, allergic reaction and hormone release.

    asked by Michelle on July 2, 2010
  23. chemistry

    Determine the order of reducing agents (strongest to weakest). A) Mn(s) > Zn(s) > Cr(s) > Fe(s) B) Fe(s) > Cr(s) > Zn(s) > Mn(s) C) Mn(s) > Fe(s) > Cr(s) > Zn(s) D) Zn(s) > Mn(s) > Cr(s) > Fe(s) I know the half reaction for the following: - Mn(s) ==>

    asked by Anonymous on March 5, 2017
  24. chemistry

    what is the reaction with sodium hydroxide for the following metals: Al3+ Fe3+ Mn2+ Ni2+ Zn2+

    asked by Jake on April 12, 2011
  25. ch102

    The rate constant of a reaction at 30 was measured to be 5.7×10^-2. If the frequency factor is 1.2 x10^13 /s what is the activation barrier?

    asked by Ellen on July 16, 2010
  26. chemistry

    Would these be a redox reaction? CaO(s) + H2O(l) = Ca(OH)2(aq) 2FeSO4(aq) + 3H2O2(aq) = Fe2O3(s) + 3H2O(l) + 2SO42-(aq)

    asked by edgar on October 4, 2010
  27. chemistry

    You mix 50 mL of 0.1 M ammonium phosphate with 75 mL of 0.05 M calcium nitrate. How much of a precipitate forms from this reaction (in grams)?

    asked by jazmin on October 4, 2010
  28. Chemistry

    For the voltaic cell Cr(s)/Cr3+(aq)//Ni+2 (aq)/Ni(s), list the reactions at the cathode, anode, and the overall net reaction.

    asked by Tara on November 22, 2010
  29. Chemistry

    In the reaction,C2H4(g) + 3O2(g) =2H2O(g) + 2CO2(g),what is the complete combustion of 12.5cm3 of ethene

    asked by Joanna on April 2, 2017
  30. chemistry

    If 1.00 {\rm mol} of {\rm{N}}_2 has a volume of 47.0 {\rm L} under the reaction conditions, how many liters of gas can be formed by heating 38.5 g of {\rm{NaN}}_3

    asked by Anonymous on September 30, 2010
  31. Science

    For the reaction 2zn+o2=2zno, how many grams of zinc oxide are produced from 2.25g of oxygen?

    asked by Larry on April 26, 2017
  32. chemistry

    Balanced equation for Oxidation-Reduction reaction for Ho2 + Cr(OH)3 = CrO4 + OH. Please show your work

    asked by Danyelle on April 2, 2011
  33. chemistry

    For the voltaic cell Cr(s)/Cr3+(aq)//Ni+2 (aq)/Ni(s), list the reactions at the cathode, anode, and the overall net reaction.

    asked by Tara on November 24, 2010
  34. Chemistry

    A catalyst does not change the ______ of the reaction. a. mechanism b. enthalpy c. energy of activation d. rate

    asked by Sef on March 2, 2008
  35. chemistry

    when water is boiled in a pot, it bubbles. Has a chemical reaction occurred? Explain your answer.

    asked by Anonymous on February 28, 2012
  36. chemistry

    Using a value of Ksp = 1.8 x 10-2 for the reaction PbCl2(s) = Pb+2(aq) + 2Cl-(aq). If a solution has a current value of Keq of 1.2 x 10-2, which statement is true?

    asked by Beth on June 21, 2010
  37. chem

    Calculate the number of kJ released for the reaction shown below, if you begin with 52 grams of fluorine (F2), and the ΔH = -542 kJ. H2(g) + F2(g) → 2 HF(g)

    asked by lala on September 29, 2015
  38. Chemistry

    Use the data in Table 15.3 to calculate the equilibrium constant for the following reaction: HCOOH(aq) + OH(aq) HCOO(aq) + H2O(l)

    asked by vichka on March 10, 2011
  39. Chemistry

    How many grams of H2O are needed if 41.85g of O2 are to be produced from the reaction below? 2K2O2 + 2H2O = 4KOH + O2

    asked by Dezi on February 4, 2017
  40. college

    In the reaction Fe2O3 + 3CO ¨ 2Fe + 3CO2 How much CO is used to produce 112 grams of iron?

    asked by Dillon on July 12, 2010
  41. chemistry

    In the reaction Fe2O3 + 3CO ¨ 2Fe + 3CO2 How much CO is used to produce 112 grams of iron?

    asked by Dillon on July 13, 2010
  42. Chem

    Use the following reactions to arrange the elements A, B, C, and D in order of their redox activity, from greatest to least. 2 A + B2+ --> 2 A+ + B B + D2+--> B2+ + D A+ + C -->No reaction 2 C + B2+ --> 2 C+ + B Can someone explain? thanks

    asked by Rebekah on May 8, 2011
  43. Chemistry

    Write the balanced molecular equation for the reaction between lithium phosphate and calcium nitrate.

    asked by Anonymous on October 11, 2014
  44. annandale

    If a lab group were using hydrochloric acid to perform a substitution reaction, which precaution would not be a concern?

    asked by exgee on May 10, 2011
  45. Chemistry

    Balance the following redox reaction in acidic solution: H3PO4 + HNO2--> N2O4 + H3PO3

    asked by JRoussel on May 10, 2011
  46. Chemistry

    Balance the following redox reaction in acidic solution: H3PO4 + HNO2--> N2O4 + H3PO3

    asked by Janey on May 10, 2011
  47. Chemistry

    Balance the following redox reaction in acidic solution: H3PO4 + HNO2--> N2O4 + H3PO3

    asked by Kynlee on May 10, 2011
  48. chemistry

    write the net ionic equation of the following reaction: HCl(aq)+NaOH(aq)--> NaCl(aq)+H2O(l)

    asked by Sid on January 3, 2012
  49. CHM

    suggest an alternative indicator for the standardization reaction. Explain the rationale behind your choice. Used 10 g of KHP

    asked by Jessica on September 14, 2014
  50. Chemistry

    2C2H6 +7O2 --> 4CO2 + 6H2O If 6 moles of O2 are used in the following reaction, how many grams of CO2 will be produced?

    asked by Barbara on April 15, 2011
  51. chemistry

    Separate this redox reaction into its component half-reactions. Cl2 + 2Na --> 2NaCl

    asked by Anonymous on February 24, 2012
  52. chemistry

    How many grams of HCl must be used to produce 10.0L of chlorine gas at STP? Reaction: 2HCl (g)--->H2 (g)+Cl2 (g)

    asked by Cliff on June 14, 2011
  53. Chemistry

    Calculate enthalpy of the reaction ethene+hydrogen gives ethane are -1410KJ,-286kJ and -1560KJ respectively at 25°c

    asked by Anonymous on January 15, 2017
  54. chemistry

    in the equation mg+2hcl-->mgcl2+h2, what mass of the hcl is consumed by the reaction of 2.50 mol of magnesium

    asked by Esla on February 23, 2012
  55. Chemistry

    What is the net ionic equation for the reaction that occures between nitrouse acid and strontium hydroxide ?

    asked by Cynthia on February 22, 2012
  56. Chemistry

    What is the net ionic equation for the reaction that occures between nitrouse acid and strontiun hydroxide ?

    asked by Cynthia on February 22, 2012
  57. AP Chemistry

    For each of the following pairs of half-cells, determine the overall electrochemical reaction that proceeds spontaneously. Na+ | Na, Ni2+ | Ni

    asked by Ken on October 26, 2015
  58. Chemistry

    In the reaction KNaC4H4O6 + H2O + COCl2 * 6H2O ¨ what r the products? and is the tartrate ion the catalyst?

    asked by Douglas on March 16, 2008
  59. Science

    What is the written equation for the oxidation reaction of hydrogen chloride 4hcl+o2=2cl2+2h2o

    asked by Anonymous on May 3, 2013
  60. Chemistry 2

    Durango redox reaction the oxidation number of species Will decretase, increpase or stay the same

    asked by Mary on December 3, 2013
  61. Organic Chem

    Outline a separation scheme for isolating pure isopentyl acetate from the reaction mixture.

    asked by Peter on April 16, 2012
  62. Health,Safety,andNutrition

    A condition often brought on by an allergic reaction is: A: anemia B: diabetes C: asthma D: seizures I picked C Thanks

    asked by Barb on February 13, 2010
  63. Chemistry

    Complete and Balance the following equation using the half-reaction method; (MnO4^-) + (CH3OH) --> (Mn^2+) + (HCO2H)

    asked by Kelli on February 12, 2013
  64. Chem

    What is the free energy change in kJ for the reaction below? 2 BrO3-(aq) + 12 H+(aq) + 5 Fe(s) « Br2(l) + 6 H2O(l) + 5 Fe2+(aq) E° = 1.960 V.

    asked by Anonymous on May 7, 2010
  65. chemistry

    Mno4- + So3-2 = Mno2 + sO4-2 (OH-) solve this redox reaction and give me the method also

    asked by kiara on September 7, 2013
  66. orgenic chemistrry

    why is the reaction mixture extracted with sodium bicarbonate?give an equation and explain its relevance.

    asked by priyanka on November 11, 2009
  67. Chemistry

    How can reaction intermediates in an organic synthesis be separated and recovered using thin layer chromatography?

    asked by Yu on January 11, 2014
  68. Chemisty

    Calculate the standard enthalpy change for the following reaction at 25 °C. MgCl2(s)+H2O(l)-->MgO(s)+2HCl

    asked by Orton on April 1, 2013
  69. Science

    FeS + HCl yields FeCl2 + H2S Balanced Equation & Type of Reaction

    asked by Alex on October 25, 2009
  70. chemistry

    balance the equation and name the reaction taking place C3H5OH+O2 equals CO2+ H2O

    asked by patricia purnell on May 13, 2013
  71. chemistry!

    How many grams of NH3 can be produced from the reaction of 17.8 moles of H2 and a sufficient supply of N2? N2 + 3H2 ---> 2NH3

    asked by please help on April 22, 2012
  72. Physics for Life science

    1.Since action and reaction are exactly equal and oppositely directed, how is ever possible for a net force to be acting on the body?

    asked by Simeon on May 3, 2010
  73. chemistry

    Calculate the number of grams of acetic acid present in the mixture after the reaction is complete.

    asked by Anonymous on January 29, 2013
  74. Organic

    Balanced reaction for cyclohexene to adipic acid. Used na2wo4 with h2o2, PTC, and khso4.

    asked by Chris on February 21, 2013
  75. chemistry

    what is the relationship between reaction rate and shape of equilibrium graph in relation to concentration vs time?

    asked by sarah on April 18, 2010
  76. chemistry

    15.0 g of Potassium metal is dropped into 50.0 ml of a 1.50 mol/L solution of H2SO4. what is the mass of gas given off during the reaction?

    asked by k on May 12, 2010
  77. Chemistry

    For a reaction: AB arrow A+B, rate=k[AB]^2and k=0.2L/mol.s a)how long it will take for [AB] to reach its initial concentration of 1.5M

    asked by Anonymous on December 8, 2012
  78. HCA/220

    how does blood clotting, immune response, allergic reaction and hormone resonse relate to each other

    asked by Anonymous on April 15, 2010
  79. Chemistry

    Complete and Balance the following equation using the half-reaction method; (MnO4^-) + (CH3OH) --> (Mn^2+) + (HCO2H)

    asked by Kelli on February 12, 2013
  80. HCA 220

    How are blood clotting,immune response,allergic reaction and hormone release interrelated?

    asked by Jessica on August 30, 2009
  81. Chemistry

    For the balanced reaction 2 Na + 2 H2O -->2 NaOH + H2 how many grams of Hydrogen are produced if 120 g of Sodium are available?

    asked by Henry on April 5, 2012
  82. Chemistry

    Write the Ka reaction for formic acid, HCO2H, and for methylammonium ion, CH3NH+ 3 . How do I approach this?

    asked by Sanya on November 5, 2013
  83. chemistry

    when silver nitrate reacts with hydrochloric acid, what type of reaction takes place?

    asked by hazel on January 24, 2013
  84. chemistry

    Which direction would equilibrium shift in the reaction N2 + 3H2 2NH2 + 22,000 cal if it is cooled?

    asked by Marcie on April 27, 2013
  85. chemistry

    When silver nitrate reacts with hydrochloric acid, what type of reaction takes place

    asked by jackie on March 5, 2010
  86. organic chemistry

    write a balanced equation for the reaction of benzoic acid with 3 M sodium hydroxide solution

    asked by cindy on May 27, 2009
  87. A & P

    how is blood clotting, immune response, allergic reaction and hormone release interrelated?

    asked by Nala on February 21, 2010
  88. chemistry

    In general, which reaction(forward, reverse, or neither) is favored if the value of K at a specified temperature is a. equal to 1? b. very small c. very large

    asked by kate on June 5, 2009
  89. Chemistry

    Why does changing the volume of the reaction vessel have no effect on this equilibrium? CO(g) + Fe3O4(s) CO2(g) + 3FeO(s)

    asked by Sammy on March 8, 2010
  90. chemistry

    State one method of preparing oxygen in the lab and wrte a balanced equation for the reaction

    asked by +2347034420247 on March 11, 2010
  91. chem

    What mass of phosphoric acid will be produced from the reaction of 10.00g of P4O10 with excess water?

    asked by Anonymous on October 4, 2009
  92. College Chemistry

    For a certain first-order reaction the rate constan is 2.9 s-1. what is the fraction of the reactant remaining after 4 half lives?

    asked by jahil on May 2, 2010
  93. Chemistry Help

    Write the net ionic equation for the reaction of calcium nitrate and sodium phosphate

    asked by Alex on November 14, 2012
  94. help!

    2cr(s) + SnCL4(aq) --> can this reaction occur if so write the balanced equation if it doesnt explain why

    asked by mel on April 16, 2009
  95. Chemistry

    For a given sample of CH3OH, the enthalpy change on reaction is 17.0 kj. How many grams of hydrogen gas are produced?

    asked by Sherri on November 10, 2012
  96. chemistry!

    How many grams of NH3 can be produced from the reaction of 17.8 moles of H2 and a sufficient supply of N2? N2 + 3H2 ! 2NH3

    asked by please help on April 22, 2012
  97. chemistry

    how will you recognize that a singe replace reaction has occured when you combine an active metal with 6M HCI

    asked by demetris on October 24, 2012
  98. Chemistry

    At some temperature, Keq = 33 for the reaction H2 + I2 „³ 2HI. If initially, [H2] = .0600 M and [I2] = .0300 M, what are all three equilibrium concentrations?

    asked by Jim on May 28, 2013
  99. Chemistry

    What chemical equation for the neutralinzation reaction between potassium hydrogen sulfate and sodium hydroxide.

    asked by Harris on June 10, 2009
  100. english10

    How does Kent’s reaction to Lear’s banishment of Cordelia introduce the theme of sight and insight?

    asked by mita on January 14, 2013